[INFO] fetching crate wifiscanner 0.3.6...
[INFO] extracting crate wifiscanner 0.3.6 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/wifiscanner/0.3.6
[INFO] extracting crate wifiscanner 0.3.6 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/wifiscanner/0.3.6
[INFO] validating manifest of wifiscanner-0.3.6 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of wifiscanner-0.3.6 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing wifiscanner-0.3.6
[INFO] finished frobbing wifiscanner-0.3.6
[INFO] frobbed toml for wifiscanner-0.3.6 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/wifiscanner/0.3.6/Cargo.toml
[INFO] started frobbing wifiscanner-0.3.6
[INFO] finished frobbing wifiscanner-0.3.6
[INFO] frobbed toml for wifiscanner-0.3.6 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/wifiscanner/0.3.6/Cargo.toml
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking wifiscanner-0.3.6 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-1/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/wifiscanner/0.3.6:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] acab7afc349e6d928b758348075cf3d4a3b4ae401aebdb027e6d60401e8cc6be
[INFO] running `"docker" "start" "-a" "acab7afc349e6d928b758348075cf3d4a3b4ae401aebdb027e6d60401e8cc6be"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking wifiscanner v0.3.6 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/lib.rs:259:9
[INFO] [stderr]     |
[INFO] [stderr] 259 |     let result = file.read_to_string(&mut filestr).unwrap();
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/lib.rs:303:9
[INFO] [stderr]     |
[INFO] [stderr] 303 |     let result = file.read_to_string(&mut filestr).unwrap();
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]    --> src/lib.rs:346:9
[INFO] [stderr]     |
[INFO] [stderr] 346 |     let result = file.read_to_string(&mut filestr).unwrap();
[INFO] [stderr]     |         ^^^^^^ help: consider prefixing with an underscore: `_result`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `wifiscanner` is imported redundantly
[INFO] [stderr]  --> examples/scan.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 1 | extern crate wifiscanner;
[INFO] [stderr]   | ------------------------- the item `wifiscanner` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 4 |     use wifiscanner;
[INFO] [stderr]   |         ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `"docker" "inspect" "acab7afc349e6d928b758348075cf3d4a3b4ae401aebdb027e6d60401e8cc6be"`
[INFO] running `"docker" "rm" "-f" "acab7afc349e6d928b758348075cf3d4a3b4ae401aebdb027e6d60401e8cc6be"`
[INFO] [stdout] acab7afc349e6d928b758348075cf3d4a3b4ae401aebdb027e6d60401e8cc6be